MORE ON THE TITAN SUBMERSIBLE Dr. Don Kramer, chief of NTSB’s Materials Laboratory, presented the lab’s findings when examining the debris left from version 2 of the Titan’s hull.

Don Kramer, the acting chief of the NTSB's materials laboratory, testified during the U.S. Coast Guard's hearing into the June 2023 implosion of the OceanGate submersible while on a deep-sea dive ...

""Further examination of the 1982 service tee by the NTSB’s Materials Laboratory revealed that the tower, which houses the tap, consisted of an outer shell and a Dupont Delrin® insert ...

Following a bridge collapse in Pittsburgh, the National Transportation Safety Board recommended a review of inspection reports to identify incomplete follow-ups for bridges made of uncoated weathering ...

The NTSB said a slippery black substance found on top of the rails at the crash site was confirmed by laboratory testing ...

Three pieces of rail, which included the welds, were sent to the NTSB Materials Lab in Washington, D.C., for group examination. An examination of the rail fragment found that a crack had formed in ...